Cell culture bag



FIG. 1 is a front view of a cell culture bag showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof, a left side view being symmetrical to the right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top perspective view thereof; and,

FIG. 7 is an enlarged cross-sectional view thereof along the line 7-7 in FIG. 4 . 

CLAIM The ornamental design for a cell culture bag, as shown and described. 